Research tells us that children's early experience builds brain architecture and lays the foundation for one's lifelong thinking skills and approach to learning, both critical roots of STEM success. STEM disciplines require content knowledge but also robust thinking dispositions-such as curiosity and inquiry, questioning and skepticism, assessment and analysis-as well as a strong learning mindset and confidence when encountering new information or challenges. These need to be developed in a child's early education, beginning in infancy and continuing through third grade to lay the roots for STEM success, (McClure et al., 2017).